Shaw, David

Position Type: 
Job Title: 
Professor; Forest Health Specialist, Forestry and Natural Resources Extension
Outreach and Engagement
Forest Engineering, Resources & Management
Forest Ecosystems & Society
Office Location: 

218 Richardson Hall

Phone Number: 
(541) 737-2845
PhD, 1991, Forest Protection and Silviculture, University of Washington
MS, 1982, Biology and Plant Ecology, Western Washington University
BS, 1977, Biology, Northern Arizona University
Research Areas: 
  • Science of Conservation, Restoration and Sustainable Management
  • Silviculture, Fire, Forest Health and Biodiversity
  • Forest, Wildlife and Landscape Ecology
Research Interests: 
  • Forest Ecology
  • Forest Entomology
  • Forest Health
  • Forest Pathology
Director, Swiss Needle Cast Cooperative, a research cooperative focused on maintaining the health of managed Douglas-fir. Collaborate with Gabriela Ritokova, FRA on management of the Coop. Co-Director (with David Bell, USFS PNW), Pacific Northwest Permanent Sample Plot System, a network of 150 plot or multi-plot installations that monitor tree growth, mortality, and structure and composition changes over time. Collaborate with Rob Pabst and Andy Bluhm, FRAs, on management of the PSP system.
David Shaw is a biologist and Forest Health Specialist with Forestry and Natural Resources Extension and Professor in Forest Engineering, Resources and Management as well as an adjunct professor in the FES department. His PhD focused on root disease in manged western hemlock forests of western Washington State. After graduate school, he was employed by University of Washington at two field stations in Forks (1991-1994), and Wind River (1994-2005), Washington. He came to OSU in 2005 where he works on forest entomology, pathology, ecology, and management of planted and natural forests. Dave is no longer accepting graduate students.
Courses Taught: 
  • FOR 599
    Field Forest Health: Forests and Disturbance in the Cascades and Western Oregon
    3 Credits. Taught as a one-week pre-quarter field class plus weekly readings in Fall Quarter
Selected Publications: 
  1. Shaw, D.C., J.W. Pscheidt, and A. Gorman. 2023. Oregon Ash: Insects, Pathogens, and Tree Health. EM 9380, January 2023. Oregon State University Extension Service.
  2. Kral, G., and D.C. Shaw. 2023. Alternatives to Ash in Western Oregon. EM 9396, March 2023. Oregon State University Extension Service.
  3. Still, C.J., A. Sibley, D. DePinte, P.E. Busby, C.A. Harrington, M. Schulze, D.C. Shaw, D. Woodruff, D.E. Rupp, C. Daly, W.M. Hammond, and G.F.M. Page. 2023. Causes of widespread foliar damage from the June 2021 Pacific Northwest Heat Dome: More heat than drought. Tree Physiology tpac143
  4. Mainwaring, D.B., G. Ritokova, D.C. Shaw, R.K. Brooks, and D.W. Omdal. 2023. Site-level estimates of Douglas-fir foliage retention from climate, soil, and topographic variables. Forest Ecology and Management 537 (2023).
  5. Bennett, M., D.C. Shaw, L. Lowrey. 2023. Recent Douglas-fir mortality in the Klamath Mountains ecoregion of Oregon: Evidence for a decline spiral. Journal of Forestry 2023.
  6. Shaw, D.C., P.A. Beedlow, E.H. Lee, D.R. Woodruff, G.W. Meigs, S.J. Calkins, M.J. Reilly, A.G. Merschel, S.P. Cline, R.L. Comeleo. 2022. Tamm Review: The complexity of biological disturbance agents, fuels heterogeneity, and fire in coniferous forests of the western United States. Forest Ecology and Management. Vol. 525
  7. LaManna, J., F. Jones, D. Bell, R. Pabst, and D. Shaw. 2022. Tree species diversity with conspecific negative density dependence across an elevation gradient. Ecology Letters
  8. Lan, Y.-H., D.C. Shaw, E.H. Lee, P. Beedlow. 2022. Distribution of a foliage disease fungus within canopies of mature Douglas-fir in western Oregon. Frontiers In Forests And Global Change
  9. Kim, M-S, J. Hantula, J. Kaitera, P.J. Zambino, S. Woodward, D.A. Richardson, J.E. Stewart, P. Spaine, D.C. Shaw, Y. Takeuchi, and N.B. Klopfenstein. 2022. Recovery plan for Scots pine blister rust caused by Cronartium pini. Plant Health Progress
  10. Hennon, P.E., S.J. Frankel, A.J. Woods, J.J. Worrall, T.D. Ramsfield, P.J. Zambino, D. C. Shaw, G. Ritokova, M.V. Warwell, D. Norlander, R.L. Mulvey, and C.G. Shaw III. 2021. Applications of a conceptual framework to assess climate controls of forest tree diseases. Forest Pathology: DOI: 10.1111/efp.12719
  11. Merschel, A.G., P.A. Beedlow, D.C.Shaw, D.R. Woodruff, E. H. Lee, S.P. Cline, R. L. Comeleo, R.K. Hagmann, M.J. Reilly. 2021. An ecological perspective on living with fire in ponderosa pine forests of Oregon and Washington: Resistance, gone but not forgotten. Trees, Forests, and People.
  12. Shaw, D.C., G. Ritóková, Y.-H. Lan, D.B. Mainwaring, A. Russo, R. Comeleo, S. Navarro, D. Norlander, and B. Smith. 2021. Persistence of the Swiss Needle Cast Outbreak in Oregon Coastal Douglas-fir, and New Insights from Research and Monitoring. Journal of Forestry. doi:10.1093/jofore/fvab011
  13. Calkins, S.J., D.C. Shaw, and Y-H Lan. 2021. Transformation of western hemlock (Tsuga heterophylla) tree crowns by dwarf mistletoe (Arceuthobium tsugense, Viscaceae). Forest Pathology DOI: 10.1111/efp.12664.
  14. Ritóková, G., D.B. Mainwaring, D.C. Shaw, and Y.-H. Lan. 2021. Douglas-fir foliage retention dynamics across a gradient of Swiss needle cast in Oregon and Washington. Canadian Journal of Forest Research
  15. Shaw, D.C., and C.A. Lee. 2020. Expansion of the invasive European mistletoe in California, USA. Botany:
  16. Bell, D.M., R.J. Pabst, D.C. Shaw. 2019. Tree growth declines and mortality associated with a parasitic plant increase during warm and dry climatic conditions in a temperate coniferous forest ecosystem. Global Change Biology:
  17. Bladon, K. D., S. Bywater-Reyes, J M. LeBoldus, S. Keriö, C. Segura, G. Ritóková and D. C. Shaw. 2019. Increased streamflow in catchments affected by a forest disease epidemic. Science of the Total Environment 691: 112-123.
  18. Lan, Y-H, D.C. Shaw, G. Ritokova and J.A. Hatten. 2019. Associations between Swiss needle cast severity and foliar nutrients in young-growth Douglas-fir in coastal western Oregon and southwestern Washington, USA. Forest Science doi: 10.1093/forsci/fxz022
  19. Lan, Y-H, D.C. Shaw, P.A. Beedlow, E.H. Lee, R.S. Waschmann. 2019. Severity of Swiss needle cast in young and mature Douglas-fir forests in western Oregon, USA. Forest Ecology and Management 442: 79-95.
  20. Woolley, T. D.C. Shaw, L.T. Hollingsworth, M.C. Agne, S. Fitzgerald, A. Eglitis, and L. Kurth. 2019. Beyond red crowns: complex changes in surface and crown fuels and their interactions 32 years following mountain pine beetle epidemics in south-central Oregon, USA. Fire Ecology15:4
  21. Mildrexler, D.J., D.C. Shaw, and W.B. Cohen. 2019. Short-term climate trends and the Swiss needle cast epidemic in Oregon’s public and private coastal forestlands. Forest Ecology and Management 432:501-513.
  22. Watson, D.M., and David Shaw. 2018. Veiled polypore (Cryptoporus volvatus) as a foraging substrate for the white-headed woodpecker (Picoides albolarvatus). Northwestern Naturalist 99: 58-62.
  23. Agne, M.C., P.A. Beedlow, D.C. Shaw, D.R. Woodruff, E.H. Lee, S.P. Cline, and R.L. Comeleo. 2018. Interactions of predominant insects and diseases with climate change in Douglas-fir forests of western Oregon and Washington. Forest Ecology and Management 409: 371-332.
  24. Wilhelmi, N., D.C. Shaw, C.A. Harrington, J.B. St. Clair, and L. Ganio. 2017. Climate of seed-source affects susceptibility of coastal Douglas-fir to foliage diseases. Ecosphere 8(12):e02011. 10.1002/ecs2.2011
  25. Mildrexler, D.J., D.C. Shaw, and W.B. Cohen. 2019. Short-term climate trends and the Swiss needle cast epidemic in Oregon’s public and private coastal forestlands. Forest Ecology and Management 432:501-513.
  26. Watson, D.M., and David Shaw. 2018. Veiled polypore (Cryptoporus volvatus) as a foraging substrate for the white-headed woodpecker (Picoides albolarvatus). Northwestern Naturalist 99: 58-62.
Extension Title: 
Forest Health Specialist